Fig. 5From: Energy of the Isolated Metastable Iron-Nickel FCC Nanocluster with a Carbon Atom in the Tetragonal IntersticeScheme of nickel atom’s positions that affect the height of potential barriers of the tetrahedral interstice (a) Δ1 ≈ Δ2, green; (b) Δ1 > Δ2, blue hatch; and (c) Δ1 < Δ2, orange Back to article page